Heat pump for warm water and heating
Compact in one unit with the buffer storage, the system manages the warmth from the photovoltic moudules, heating and cooling of the earth collector.  

Heat pump for warm water and heating

Compact in one unit with the buffer storage, the system manages the warmth from the photovoltic moudules, heating and cooling of the earth collector.

In earlier times, the heat pump has only taken out heat from the earth.

Modern systems use the heat from the photovoltaic cooling to warm up the earth collector.

Higher efficiency and less power usage are the consequences.